Exclude a keyword from a file search?
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Hi, so I have a set of files such as:
'20130723_SPLBRENT3_000003.mat'
'20130723_SPLBRENT3_005948.mat'
'20130723_SPLBRENT3_015948.mat'
'20130723_SPLBRENT3_025948.mat'
'20130723_SPLBRENT3_035949.mat'
'20130723_SPLBRENT3_045948.mat'
'20130723_SPLBRENT3_055948.mat'
'20130723_SPLBRENT3_065948.mat'
'20130723_SPLBRENT3_075949.mat'
'20130723_SPLBRENT3_085949.mat'
'20130723_SPLBRENT3_095949.mat'
'20130723_SPLBRENT3_102025.mat'
'20130723_SPLBRENT3_102931.mat'
'20130723_SPLBRENT3_112947.mat'
'20130723_SPLBRENT3_122947.mat'
'20130723_SPLBRENT3_132947.mat'
'20130723_SPLBRENT3_142947.mat'
'20130723_SPLBRENT3_152947.mat'
'20130723_SPLBRENT3_162947.mat'
'20130723_SPLBRENT3_172947.mat'
'20130723_SPLBRENT3_180744.mat'
'20130723_SPLBRENT3_190749.mat'
'20130723_SPLBRENT3_200749.mat'
'20130723_SPLBRENT3_concat.mat'
These are files from yesterday (7/23), and I made a concat file that combines all the files into one, which is at the bottom. I'm writing a code that counts the number of files that were uploaded yesterday, but I don't want the concat file to count. Is there anyway I can exclude the concat.mat file?
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Azzi Abdelmalek
el 24 de Jul. de 2013
file={'20130723_SPLBRENT3_180744.mat'
'20130723_SPLBRENT3_190749.mat'
'20130723_SPLBRENT3_200749.mat'
'20130723_SPLBRENT3_concat.mat'}
new_file=file( cellfun(@(x) isempty(regexp(x,'concat')),file))
2 comentarios
Jan
el 26 de Jul. de 2013
Editada: Jan
el 26 de Jul. de 2013
Again I mention, that cellfun is slow when combined with anonymous functions. I do not see a reason to let Matlab waste time and suggest:
new_file = file(cellfun('isempty', regexp(file, 'concat')))
And if you do not like the string methods of cellfun, this is at least faster than the anonymous function:
new_file = file(cellfun(@isempty, regexp(file, 'concat')))
@Azzi: Do you think it is worth to suggest the faster cellfun methods without anonymous functions in the forum? Is there any reason that you avoid them?
Más respuestas (1)
Jan
el 26 de Jul. de 2013
If this is time-critical, you can use FEX: strncmpr, which is identical to strncmp but compares the end of the string:
new_file = file(~strncmpr(file, '_concat.mat', 11));
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